12 free calculators · No signup

Free grower calculators.

The same math Row Wise runs on autopilot, free to use by hand — cotton, grain sorghum, corn, and whole-farm tools.

Cotton

Estimate lint pounds and bales per acre from boll counts, boll size and gin turnout.

Calculate cotton growing degree days (base 60°F) and track progress toward each stage.

Check defoliation readiness from percent open bolls and nodes above cracked boll (NACB).

Check plant vigor with height-to-node ratio (HNR) and get a starting mepiquat rate range by growth stage.

Project milo bushels per acre from head counts, seeds per head and seed size.

Calculate modified corn growing degree days (base 50°F, 86°F cap) and track season progress.

Convert a target seeding rate to pounds per acre, in-row spacing and expected stand.

Convert wet bushels at harvest to dry bushels at market moisture, and see total shrink.

Work out acres per tank, number of tanks, and product per tank for a mix.

Estimate a starting nitrogen rate from your yield goal, minus soil and previous-crop credits.

Find the yield you need to cover your costs, and see profit or loss at your own yield estimate.

Track soil moisture depletion against your trigger threshold to see when — and how much — to irrigate.